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Vector Processor
Exploiting Vector Code Semantics for Efficient Data Cache Prefetching
2024
Emerging workloads from domains like high performance computing, data analytics or deep learning consume large amounts of memory bandwidth. To mitigate this problem, computing systems include large and deep memory cache hierarchies that exploit both spatial a…
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Vector Processor

Computer processor which works on arrays of several numbers at once

In computing, a vector processor or array processor is a central processing unit (CPU) that implements an instruction set where its instructions are designed to operate efficiently and effectively on large one- dimensional arrays of data called vectors. This is in contrast to scalar processors, whose instructions operate on single data items only, and in contrast to some of those same scalar processors having additional single instruction, multiple data (SIMD) or SWAR Arithmetic Units. Vector processors can greatly improve performance on certain workloads, notably numerical simulation and similar tasks. Vector processing techniques also operate in video-game console hardware and in graphics accelerators.

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Exploiting Vector Code Semantics for Efficient Data Cache Prefetching
2024
Emerging workloads from domains like high performance computing, data analytics or deep learning consume large amounts of memory bandwidth. To mitigate this problem, computing systems include large and deep memory cache hierarchies that exploit both spatial and temporal locality. In this context, hardware data cache prefetching constitutes a useful method to anticipate cache misses and boost performance. Despite their success in terms of high coverage rates, current data cache prefetchers incur a significant numbe…
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